Convertible seating device



FIG. 1 is a perspective view of an embodiment of the instant invention in a first position.

FIG. 2 is a perspective view of an embodiment of the instant invention in a second position; and,

FIG. 3 is a perspective view of an embodiment of the instant invention in a third position. 

The ornamental design for a convertible seating device, as shown and described. 